Add new tests for systemd varlink based user/group lookup

See https://gitlab.com/samba-team/samba/-/merge_requests/2928

Author: anoopcs9

packaging/samba-master.spec.j2

@@ -2572,6 +2572,11 @@ fi
 %dir %{python3_sitearch}/samba/tests/samba_tool/__pycache__
 %{python3_sitearch}/samba/tests/samba_tool/__pycache__/*.*.pyc
 
+%dir %{python3_sitearch}/samba/tests/varlink
+%{python3_sitearch}/samba/tests/varlink/*.py
+%dir %{python3_sitearch}/samba/tests/varlink/__pycache__
+%{python3_sitearch}/samba/tests/varlink/__pycache__/*.*.pyc
+
 %{python3_sitearch}/samba/tests/krb5/__pycache__/*.*.pyc
 %{python3_sitearch}/samba/tests/krb5/*.py